Micro light-emitting diode display device

Abstract

A display device includes a display substrate, at least one micro light-emitting diode (LED) chip, and at least one reflective layer. The display substrate includes at least one sub-pixel circuit. The micro LED chip is electrically connected to the sub-pixel circuit. The micro LED chip is at least partially disposed between the reflective layer and the sub-pixel circuit.

What is claimed is: 
     
       1. A display device, comprising:
 a display substrate comprising at least one sub-pixel circuit; 
 at least one micro light-emitting diode (LED) chip electrically connected to said at least one sub-pixel circuit; 
 at least one reflective layer, wherein the micro LED chip is at least partially disposed between the reflective layer and the sub-pixel circuit; and 
 a dielectric package layer wrapping around the micro LED chip, wherein the dielectric package layer isolates the micro LED chip from the reflective layer, the dielectric package layer comprises a plurality of micro-structures, and the reflective layer covers the micro-structures and has a plurality of corresponding reflective micro-structures. 
 
     
     
       2. The display device of  claim 1 , further comprising:
 a transparent cover, wherein the display substrate is between the transparent cover and the micro LED chip. 
 
     
     
       3. The display device of  claim 1 , wherein a plurality of said at least one micro LED chips comprise a red LED chip, a green LED chip, and a blue LED chip. 
     
     
       4. The display device of  claim 1 , further comprising:
 a color filter film comprising at least one red color filter unit, at least one green color filter unit, and at least one blue color filter unit disposed respectively corresponding to a plurality of said at least one sub-pixel circuits. 
 
     
     
       5. The display device of  claim 4 , wherein a plurality of said at least one micro LED chips have the same emission spectrum and are disposed corresponding to the sub-pixel circuits, respectively. 
     
     
       6. The display device of  claim 1 , wherein a plurality of said at least one micro LED chips are between a plurality of said at least one reflective layers and a plurality of said at least one sub-pixel circuits respectively, and the reflective layers are separated from each other. 
     
     
       7. The display device of  claim 1 , wherein a plurality of said at least one micro LED chips are between a plurality of said at least one reflective layers and a plurality of said at least one sub-pixel circuits respectively, and the reflective layers are connected with each other. 
     
     
       8. The display device of  claim 1 , wherein the display substrate comprises:
 a substrate having a first surface and a second surface, wherein the first surface is closer to the micro LED chip than the second surface is; and 
 an array control circuit configured to control a plurality of said at least one sub-pixel circuits, wherein the array control circuit is disposed on the first surface of the substrate. 
 
     
     
       9. The display device of  claim 8 , further comprising:
 a touch sensing layer on the second surface of the substrate. 
 
     
     
       10. The display device of  claim 1 , further comprising:
 a light-shielding layer covering a portion of the display substrate, wherein the light-shielding layer does not cover at least a portion of the sub-pixel circuit. 
 
     
     
       11. The display device of  claim 1 , further comprising:
 a light-shielding layer having at least one opening corresponding to said at least one sub-pixel circuit, wherein the reflective layer entirely covers the opening of the light shielding layer. 
 
     
     
       12. A display device, comprising:
 a display substrate comprising at least one sub-pixel circuit; 
 at least one micro light-emitting diode (LED) chip electrically connected to said at least one sub-pixel circuit; 
 a dielectric package layer wrapping around the micro LED chip, wherein dielectric package layer comprises a plurality of micro-structures; 
 a reflective layer covering the micro-structures and having a plurality of corresponding reflective micro-structures; and 
 a light-shielding layer having at least one opening corresponding to said at least one sub-pixel circuit, wherein the reflective layer is in direct contact with the light-shielding layer, and the at least one opening of the light-shielding layer exposes the reflective layer. 
 
     
     
       13. The display device of  claim 12 , wherein at least a portion of the reflective layer is in the at least one opening of the light-shielding layer. 
     
     
       14. The display device of  claim 12 , wherein the reflective layer is between the display substrate and the micro LED chip. 
     
     
       15. The display device of  claim 12 , wherein the micro LED chip is between the display substrate and the reflective layer. 
     
     
       16. The display device of  claim 12 , wherein the dielectric package layer isolates the micro LED chip from the reflective layer.